CN101581631A - Method for testing performance of air floating band steel transport unit and device thereof - Google Patents
Method for testing performance of air floating band steel transport unit and device thereof Download PDFInfo
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- CN101581631A CN101581631A CNA200910062720XA CN200910062720A CN101581631A CN 101581631 A CN101581631 A CN 101581631A CN A200910062720X A CNA200910062720X A CN A200910062720XA CN 200910062720 A CN200910062720 A CN 200910062720A CN 101581631 A CN101581631 A CN 101581631A
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Abstract
The invention relates to a method for testing performance of an air floating band steel transport unit used in a cold-rolling production line and a device thereof. The testing method of the performance of the air floating band steel transport unit is characterized in that the method comprises the following steps: 1) floating height performance testing: the frequency of a frequency converted ventilator of the air floating band steel transport unit is adjusted to 5-20 different testing points; a curve diagram is drawn according to the tested frequency of the converted ventilator frequency, pressure value and floating height value to obtain the relations between the floating height and the pressure value and the frequency converted ventilator frequency; 2) floating force performance testing: when testing points on the same height, the frequency of the frequency converted ventilator of the air floating band steel transport unit is adjusted to 5-20 different testing points; a curve diagram is drawn according to the tested frequency converted ventilator frequency, pressure value and floating force to obtain the relations between the floating force and the pressure value and the frequency converted ventilator frequency at the same height; relations between the floating force and the pressure value and the frequency converted ventilator frequency can be obtained at 5-20 different height testing points by repeating the above steps. The method and the device of the invention can be used to test the floating height and the floating force of the air floating band steel transport unit.
Description
Technical field
The present invention relates to a kind of method of testing and equipment thereof that is used for the performance of air floating band steel transport unit of rolling mill production line.
Background technology
Existing band steel conveyer mostly is the contact conveyer greatly, promptly adopts furnace roller to transmit.This transmission mode causes the damage of belt steel surface scuffing or transmission equipment easily under specific environment.In the silicon steel continuous annealing unit, the band steel is going out continuous annealing furnace, after the coating, before the coating sintering, as adopting the contact transmission mode, very easily cause coating to scratch in the coating drying and sintering process, and coating easily is bonded in the furnace roller surface and forms dross, thereby further worsens transmission quality.Silicon steel high temperature decarburizing annealing section for another example for avoiding scratching the band steel, is used carbon cover roller, but carbon cover roller is because band steel friction and oxidation, and the life-span is shorter, and the oxide that belt steel surface generates very easily is bonded in the furnace roller surface, forms dross, causes scratching the band steel.
So air floating band steel transport unit (or claiming contactless band steel conveyer) occurred.
As Fig. 1, Fig. 2, shown in Figure 3, air floating band steel transport unit comprises frequency conversion fan, connecting pipe, air chamber 1, right nozzle 2, left nozzle 3, fair water fin 4, be provided with gas storage chamber in the air chamber 1, air chamber 1 upper left end is fixedly connected with left nozzle 3 (pressure-tight welds, need to do air-tight test after having welded), air chamber 1 upper right end is fixedly connected with right nozzle 2 (pressure-tight weld needs to do air-tight test after having welded), and left nozzle 3, right nozzle 2 are connected with the gas storage chamber of air chamber 1 respectively; The upper end of air chamber 1 is fixedly connected with fair water fin 4, and the left end of fair water fin 4 is positioned at the outlet edge of left nozzle 3, and the right-hand member of fair water fin 4 is positioned at the outlet edge of right nozzle 2; The bottom of air chamber 1 is fixed in the stove by fixed head; Air chamber 1 is provided with air intake flange (with the connected mode in the external world is that flange is connected, and this junction will guarantee impermeability); The air intake flange links to each other with connecting pipe, and connecting pipe links to each other with frequency conversion fan.Frequency conversion fan provides source of the gas, source of the gas is entered in the gas storage chamber of air chamber 1 by connecting pipe, after a pair of nozzle of positioned opposite sprays the ejection that has a certain degree, between band steel 5 and fair water fin 4, produce static pressure, thereby the band steel is produced floating force (relying on the ejection air-flow to produce a power that makes progress below the band steel will be with steel to hold up stably).
After gas flowed into gas storage chamber (air chamber), execute-in-place, spot check personnel can record pressure signal by the pressure tap at gas storage chamber place and judge the floating height of band steel, also can set the force value of the pressure tap at gas storage chamber place according to the band steel of different size.
Summary of the invention
The object of the present invention is to provide a kind of method of testing and equipment thereof of performance of air floating band steel transport unit, floating height, the floating force performance of this method and equipment energy test air formula band steel conveyer thereof.
To achieve these goals, technical scheme of the present invention is: the method for testing of performance of air floating band steel transport unit is characterized in that it comprises the steps:
1) test of floating height performance: the top that 1. the calibration tape steel is arranged on air floating band steel transport unit; (the changeable frequency scope is that 5～100Hz) frequency is in 5～20 different measuring points, writes down the frequency of each measuring point respectively to regulate the frequency conversion fan of air floating band steel transport unit; Force value (recording) when measuring 5～20 different frequency measuring points simultaneously in the air floating band steel transport unit by first pressure tap, and write down the force value of each measuring point respectively; The floating height value (displacement after from static state to the floating stable) of calibration tape steel when measuring 5～20 different frequency measuring points simultaneously, and write down the floating height value of each measuring point respectively;
2. make curve map according to the above-mentioned frequency conversion fan frequency that records, force value, floating height value, draw the relation (effect: execute-in-place, spot check personnel can record pressure signal by the pressure tap at gas storage chamber place and judge the floating height of band steel) between floating height and force value, the frequency conversion fan frequency;
2) test of floating force performance: 1. will simulate the band steel plate and be shelved on the electronic balance, elder generation's weighing simulation band steel plate is in the weight (when air floating band steel transport unit is not worked) of static state, make simulation band steel plate be in the top of air floating band steel transport unit, choose 5～20 different height measuring points;
2. when the sustained height measuring point when height point (highly constant, a certain), (the changeable frequency scope is that 5～100Hz) frequency is in 5～20 different frequency measuring points, writes down the frequency of each frequency measuring point respectively to regulate the frequency conversion fan of air floating band steel transport unit; Force value (recording) when measuring 5～20 different frequency measuring points simultaneously in the air floating band steel transport unit, and the force value when writing down each frequency measuring point respectively by first pressure tap; The weight of simulation band steel plate during the different frequency measuring point of 5～20 of weighings simultaneously, weight with simulation band steel plate simulation band steel plate when the weight of static state deducts 5～20 different frequency measuring points, the floating force during 5～20 different frequency measuring points, and the floating force when writing down each frequency measuring point respectively; The pressure distribution value of simulation band steel plate below when measuring 5～20 different frequency measuring points simultaneously; Make curve map according to above-mentioned frequency conversion fan frequency, force value, the floating force that records, the relation when obtaining a certain height between floating force and force value, the frequency conversion fan frequency;
3. repeating step 2) 2., the relation when obtaining 5～20 different height measuring points between floating force and force value, the frequency conversion fan frequency.
Realize the testing apparatus of the performance of air floating band steel transport unit of said method, it is made up of floating height performance testing device and floating force performance testing device;
Floating height performance testing device, it comprises displacement direction finder support 7, left counterweight 9, left backing roll 10, displacement direction finder 11, right backing roll 12, right counterweight 13, displacement transducer 14, computing machine 15, first pressure transducer 16, the first pressure measurement signal line 17, pressure unit 18; The left end of calibration tape steel 19 is fixedlyed connected with left counterweight 9 by left backing roll 10 backs, the right-hand member of calibration tape steel 19 is fixedlyed connected with right counterweight 13 by right backing roll 12, left side backing roll 10, right backing roll 12 are arranged on the band steel bracket, and the middle part of calibration tape steel 19 is positioned at the top of air floating band steel transport unit 6; Displacement direction finder 11 is arranged on the displacement direction finder support 7, displacement direction finder 11 is positioned at the top at calibration tape steel 19 middle parts, the output terminal of displacement direction finder 11 is linked to each other by the input end of signal wire with displacement transducer 14, and the output terminal of displacement transducer 14 is linked to each other by the input interface of signal wire with computing machine 15; First pressure transducer 16 is positioned at first pressure tap on the air floating band steel transport unit 6, the output terminal of first pressure transducer 16 is linked to each other with the input end of pressure unit 18 by the first pressure measurement signal line 17, and the output terminal of pressure unit 18 is linked to each other by the input interface of signal wire with computing machine 15;
The floating force performance testing device, it comprises computing machine 15, first pressure transducer 16, pressure unit 18, adjustable supports stand 20, electronic balance 21, second pressure transducer 22, the second pressure measurement signal line 23, simulation band steel plate 24 is shelved on the electronic balance 21, electronic balance 21 is shelved on the adjustable supports stand 20, and the middle part of simulation band steel plate 24 is positioned at the top of air floating band steel transport unit 6; First pressure transducer 16 is positioned at first pressure tap on the air floating band steel transport unit 6, the output terminal of first pressure transducer 16 is linked to each other with the input end of pressure unit 18 by the first pressure measurement signal line 17, and the output terminal of pressure unit 18 is linked to each other by the input interface of signal wire with computing machine 15; It is (uniform that middle part on the simulation band steel plate 24 is provided with 5～20 second pressure taps, among Fig. 5 be 10), the output terminal that is provided with one second pressure transducer, 22, the second pressure transducers 22 in each second pressure tap is linked to each other with the input end of pressure unit 18 by the second pressure measurement signal line 23.
The invention has the beneficial effects as follows:
1) this method can be measured floating height, the floating force performance of air floating band steel transport unit, for practical operation provides foundation and help.
2) testing apparatus of the present invention is simple, easy operates, and can easily measure floating height, the floating force performance of air floating band steel transport unit.
Description of drawings
Fig. 1 is the structural representation of existing air floating band steel transport unit;
Fig. 2 is the air supporting schematic diagram of existing air floating band steel transport unit;
Fig. 3 is the structural representation of the left nozzle of existing air floating band steel transport unit;
Fig. 4 is the structural representation of floating height performance testing device of the present invention;
Fig. 5 is the structural representation of floating force performance testing device of the present invention;
Fig. 6 is the air chamber pressure of air supporting band steel conveyer and the graph of a relation of frequency;
Fig. 7 is the graph of a relation (this figure is the showy height of band steel specification 0.5 * 1000 * 6000) of band floating height of steel and frequency;
Among the figure: the 1-air chamber, the 2-right nozzle, the 3-left nozzle, the 4-fair water fin, 5-is with steel; The 6-air floating band steel transport unit, 7-displacement direction finder support, 8-frequency conversion fan, 9-left side counterweight, 10-left side backing roll, 11-displacement direction finder, the right backing roll of 12-, the right counterweight of 13-, 14-displacement transducer, 15-computing machine, 16-first pressure transducer, the 17-first pressure measurement signal line, 18-pressure unit, 19-calibration tape steel, 20-adjustable supports stand, 21-electronic balance, 22-second pressure transducer, the 23-second pressure measurement signal line, 24-simulation band steel plate.
Embodiment
In order to understand the present invention better, further illustrate content of the present invention below in conjunction with embodiment, but content of the present invention not only is confined to the following examples.
Embodiment 1: the method for testing of performance of air floating band steel transport unit, it comprises the steps:
1) test of floating height performance: the top that 1. the calibration tape steel is arranged on air floating band steel transport unit; (the changeable frequency scope is that 5～100Hz) frequency is in 20 different measuring points (specifically select as the case may be, can adopt 5～20), writes down the frequency of each measuring point respectively to regulate the frequency conversion fan of air floating band steel transport unit; Force value (recording) when measuring 20 different frequency measuring points simultaneously in the air floating band steel transport unit by first pressure tap, and write down the force value of each measuring point respectively; The floating height value (displacement after from static state to the floating stable) of calibration tape steel when measuring 20 different frequency measuring points simultaneously, and write down the floating height value of each measuring point respectively;
2. make curve map according to the above-mentioned frequency conversion fan frequency that records, force value, floating height value, draw the relation (effect: execute-in-place, spot check personnel can record pressure signal by the pressure tap at gas storage chamber place and judge the floating height of band steel) between floating height and force value, the frequency conversion fan frequency;
The air chamber pressure of air supporting band steel conveyer and the relation of frequency are as shown in Figure 6.
Table 1 is the relation between band steel specification and the counterweight.
Table 1
In experiment time,, the band steel of employing is the wide band steel of 1000mm, and being with the steel center later on is x=0, and the left side is for negative, and the right side is for just.
2) test of floating force performance:
1. will simulate the band steel plate is shelved on the electronic balance, elder generation's weighing simulation band steel plate is in the weight (when air floating band steel transport unit is not worked) of static state, make simulation band steel plate be in the top of air floating band steel transport unit, choose 20 different height measuring points (specifically select as the case may be, can adopt 5～20);
2. (highly constant when the sustained height measuring point, during a certain height point), (the changeable frequency scope is that 5～100Hz) frequency is in 20 different frequency measuring points and (specifically selects as the case may be to regulate the frequency conversion fan of air floating band steel transport unit, can adopt 5～20), write down the frequency of each frequency measuring point respectively; Force value (recording) when measuring 20 different frequency measuring points simultaneously in the air floating band steel transport unit, and the force value when writing down each frequency measuring point respectively by first pressure tap; The weight of simulation band steel plate during the different frequency measuring point of 20 of weighings simultaneously, weight with simulation band steel plate simulation band steel plate when the weight of static state deducts 20 different frequency measuring points, the floating force during 20 different frequency measuring points, and the floating force when writing down each frequency measuring point respectively; The pressure distribution value of simulation band steel plate below when measuring 20 different frequency measuring points simultaneously; Make curve map according to above-mentioned frequency conversion fan frequency, force value, the floating force that records, the relation when obtaining a certain height between floating force and force value, the frequency conversion fan frequency;
3. repeating step 2) 2., the relation when obtaining 20 different height measuring points (specifically select as the case may be, can adopt 5～20) between floating force and force value, the frequency conversion fan frequency.
The relation of band floating height of steel and frequency is seen Fig. 7.
Realize the testing apparatus of the performance of air floating band steel transport unit of said method, it is made up of floating height performance testing device and floating force performance testing device;
Floating height performance testing device, it comprises displacement direction finder support 7, left counterweight 9, left backing roll 10, displacement direction finder 11, right backing roll 12, right counterweight 13, displacement transducer 14, computing machine 15, first pressure transducer 16, the first pressure measurement signal line 17, pressure unit 18; Calibration tape steel a 19 (i.e. section strip steel, be used for test) left end then fixedly connected by left backing roll 10 with left counterweight 9, the right-hand member of calibration tape steel 19 is fixedlyed connected (both sides of calibration tape steel 19 apply tension force by counterweight) by right backing roll 12 with right counterweight 13, left side backing roll 10, right backing roll 12 are arranged on the band steel bracket, and the middle part of calibration tape steel 19 is positioned at the top of air floating band steel transport unit 6; Displacement direction finder 11 is arranged on the displacement direction finder support 7, displacement direction finder 11 is positioned at the top at calibration tape steel 19 middle parts, the output terminal of displacement direction finder 11 is linked to each other by the input end of signal wire with displacement transducer 14 (can adopt existing displacement transducer), and the output terminal of displacement transducer 14 is linked to each other by the input interface of signal wire with computing machine 15; First pressure transducer 16 is positioned at first pressure tap on the air floating band steel transport unit 6, and (air floating band steel transport unit 6 is provided with first pressure tap, first pressure tap communicates with the air chamber of air floating band steel transport unit 6), the output terminal of first pressure transducer 16 is linked to each other with the input end of pressure unit 18 by the first pressure measurement signal line 17, and the output terminal of pressure unit 18 is linked to each other by the input interface of signal wire with computing machine 15.All experimental datas all are stored in the computing machine.
The floating force performance testing device, it comprises computing machine 15, first pressure transducer 16, pressure unit 18, adjustable supports stand 20, electronic balance 21, second pressure transducer 22, the second pressure measurement signal line 23, simulation band steel plate 24 is shelved on the electronic balance 21, electronic balance 21 is shelved on (adjustable height of adjustable supports stand) on the adjustable supports stand 20, the middle part of simulation band steel plate 24 (with the band steel wide, thick identical, identical with the weight of a section strip steel) is positioned at the top of air floating band steel transport unit 6; First pressure transducer 16 is positioned at first pressure tap on the air floating band steel transport unit 6, and (air floating band steel transport unit 6 is provided with first pressure tap, first pressure tap communicates with the gas storage chamber of air floating band steel transport unit 6), the output terminal of first pressure transducer 16 is linked to each other with the input end of pressure unit 18 by the first pressure measurement signal line 17, and the output terminal of pressure unit 18 is linked to each other by the input interface of signal wire with computing machine 15; It is (uniform that middle part on the simulation band steel plate 24 is provided with 5～20 second pressure taps, among Fig. 5 be 10), be provided with one second pressure transducer 22 (number is consistent with the number of second pressure tap) in each second pressure tap, the output terminal of second pressure transducer 22 is linked to each other with the input end of pressure unit 18 by the second pressure measurement signal line 23.All experimental datas all are stored in the computing machine.
Claims (2)
1. the method for testing of performance of air floating band steel transport unit is characterized in that it comprises the steps:
1) test of floating height performance: the top that 1. the calibration tape steel is arranged on air floating band steel transport unit; The frequency of regulating the frequency conversion fan of air floating band steel transport unit is in 5～20 different measuring points, writes down the frequency of each measuring point respectively; Force value when measuring 5～20 different frequency measuring points simultaneously in the air floating band steel transport unit, and write down the force value of each measuring point respectively; The floating height value of calibration tape steel when measuring 5～20 different frequency measuring points simultaneously, and write down the floating height value of each measuring point respectively;
2. make curve map according to the above-mentioned frequency conversion fan frequency that records, force value, floating height value, draw the relation between floating height and force value, the frequency conversion fan frequency;
2) test of floating force performance: 1. will simulate the band steel plate and be shelved on the electronic balance, first weighing simulation band steel plate makes simulation band steel plate be in the top of air floating band steel transport unit in the weight of static state, chooses 5～20 different height measuring points;
2. when the sustained height measuring point, the frequency of regulating the frequency conversion fan of air floating band steel transport unit is in 5～20 different frequency measuring points, writes down the frequency of each frequency measuring point respectively; Force value when measuring 5～20 different frequency measuring points simultaneously in the air floating band steel transport unit, and the force value when writing down each frequency measuring point respectively; The weight of simulation band steel plate during the different frequency measuring point of 5～20 of weighings simultaneously, weight with simulation band steel plate simulation band steel plate when the weight of static state deducts 5～20 different frequency measuring points, the floating force during 5～20 different frequency measuring points, and the floating force when writing down each frequency measuring point respectively; The pressure distribution value of simulation band steel plate below when measuring 5～20 different frequency measuring points simultaneously; Make curve map according to above-mentioned frequency conversion fan frequency, force value, the floating force that records, the relation when obtaining a certain height between floating force and force value, the frequency conversion fan frequency;
3. repeating step 2) 2., the relation when obtaining 5～20 different height measuring points between floating force and force value, the frequency conversion fan frequency.
2. realize the testing apparatus of the performance of air floating band steel transport unit of the described method of claim 1, it is made up of floating height performance testing device and floating force performance testing device;
Floating height performance testing device, it comprises displacement direction finder support (7), left counterweight (9), left backing roll (10), displacement direction finder (11), right backing roll (12), right counterweight (13), displacement transducer (14), computing machine (15), first pressure transducer (16), the first pressure measurement signal line (17), pressure unit (18); The left end of calibration tape steel (19) is fixedlyed connected with left counterweight (9) by left backing roll (10) back, the right-hand member of calibration tape steel (19) is fixedlyed connected with right counterweight (13) by right backing roll (12), left side backing roll (10), right backing roll (12) are arranged on the band steel bracket, and the middle part of calibration tape steel (19) is positioned at the top of air floating band steel transport unit (6); Displacement direction finder (11) is arranged on the displacement direction finder support (7), displacement direction finder (11) is positioned at the top at calibration tape steel (19) middle part, the output terminal of displacement direction finder (11) is linked to each other by the input end of signal wire with displacement transducer (14), and the output terminal of displacement transducer (14) is linked to each other by the input interface of signal wire with computing machine (15); First pressure transducer (16) is positioned at first pressure tap on the air floating band steel transport unit (6), the output terminal of first pressure transducer (16) is linked to each other with the input end of pressure unit (18) by the first pressure measurement signal line (17), and the output terminal of pressure unit (18) is linked to each other by the input interface of signal wire with computing machine (15);
The floating force performance testing device, it comprises computing machine (15), first pressure transducer (16), pressure unit (18), adjustable supports stand (20), electronic balance (21), second pressure transducer (22), the second pressure measurement signal line (23), simulation band steel plate (24) is shelved on the electronic balance (21), electronic balance (21) is shelved on the adjustable supports stand (20), and the middle part of simulation band steel plate (24) is positioned at the top of air floating band steel transport unit (6); First pressure transducer (16) is positioned at first pressure tap on the air floating band steel transport unit (6), the output terminal of first pressure transducer (16) is linked to each other with the input end of pressure unit (18) by the first pressure measurement signal line (17), and the output terminal of pressure unit (18) is linked to each other by the input interface of signal wire with computing machine (15); Middle part on the simulation band steel plate (24) is provided with 5～20 second pressure taps, be provided with one second pressure transducer (22) in each second pressure tap, the output terminal of second pressure transducer (22) is linked to each other with the input end of pressure unit (18) by the second pressure measurement signal line (23).
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| CN200910062720XA CN101581631B (en) | 2009-06-16 | 2009-06-16 | Method for testing performance of air floating band steel transport unit and device thereof |
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| CN200910062720XA CN101581631B (en) | 2009-06-16 | 2009-06-16 | Method for testing performance of air floating band steel transport unit and device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2013056496A1 (en) * | 2011-10-17 | 2013-04-25 | 宝山钢铁股份有限公司 | Method for producing electrical steel surface super-thick insulating coating |
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| US7237445B1 (en) * | 2004-12-21 | 2007-07-03 | Ford Global Technologies, Llc | Test fixture for the aging of wiper blades in a laboratory |
| CN100533601C (en) * | 2006-09-12 | 2009-08-26 | 中国航空工业第一集团公司北京长城计量测试技术研究所 | Air cushion driver for air float displacement table |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013056496A1 (en) * | 2011-10-17 | 2013-04-25 | 宝山钢铁股份有限公司 | Method for producing electrical steel surface super-thick insulating coating |
| EP2769775A4 (en) * | 2011-10-17 | 2015-07-01 | Baoshan Iron & Steel | Method for producing electrical steel surface super-thick insulating coating |
| RU2568727C1 (en) * | 2011-10-17 | 2015-11-20 | Баошань Айрон Энд Стил Ко., Лтд. | Method of production of especially thick insulation coating on surface of electrical steel |
| US9406416B2 (en) | 2011-10-17 | 2016-08-02 | Baoshan Iron & Steel Co., Ltd | Method of producing extremely thick insulation coating on surface of electrical steel |
| EP2769775B1 (en) | 2011-10-17 | 2016-08-17 | Baoshan Iron & Steel Co., Ltd. | Method for producing electrical steel surface super-thick insulating coating |
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Address after: 430223 No. 33 University Park Road, Donghu Development Zone, Wuhan City, Hubei Province Patentee after: Zhongye South (Wuhan) Thermal Engineering Co., Ltd. Address before: 430223 No. 33, University Garden Road, East Lake New Technology Development Zone, Wuhan, Hubei Patentee before: WISDRI (Wuhan) WIS Industrial Furnace Co., Ltd. |